The object of this manual was to enumerate and clarify the various measures that could be adopted to destroy the effectiveness of the enemy intelligence system. Covers: Secrecy Discipline;... More > Concealment; Tactical Measures; Preparation and Use of Documents; Signal Communication Security; Movements of Troops and Individuals; Newspaper Correspondents, Photographers, Radio News Commentators, and Visitors; Censorship; Counterpropaganda. Originally published 15 February 1940. 37 pages.< Less

This guide has been produced for aviation enthusiasts, spotters and photographers. It includes the United Kingdom’s military airfield establishments featuring full colour maps of those operated... More > by Royal Air Force, Royal Navy, British Army, United States Air Force and the Ministry of Defence.
This essential guide features 22 maps of the major operational airfields with associated units and airfield radio frequencies plus 28 maps of minor and satellite airfields.
A brief commentary has been provided to illustrate the operator, units and activities of the airfield. Where possible a location for airfield observation and photography is provided.
In addition, a summary of flying units and squadrons is included, bringing together information detailed at each of the airfields featured.< Less

This booklet presents the story of the development, production, and use of radio proximity fuzes, with some of the historical circumstances. The project was sponsored, administered and supported by... More > the National Defense Research Committee jointly with the Army, with the National Bureau of Standards serving as the central laboratory. Originally published in October 1945 by the Ordnance Development Division, National Bureau of Standards. Contents: The Purpose of the Fuze, Early Development, The Fuze for the M-8 Rocket, Bomb Fuze Development, The Generator-Powered Rocket Fuze, The Mortar Fuzes, Production, Tests of Effectiveness, Operational Record, Military Direction and Collaboration, Industrial Collaboration, Administrative and Technical Staff. 46 pages, 6 photos.< Less

If you plan to operate a ham radio pedestrian mobile station, this is the book for you! This handbook will guide you through all phases of designing, building and operating your PM station.
This is... More > the second edition of my handbook. You will notice some changes from the first edition. The first change is in the battery chapter as most of the charging information has been deleted from that chapter. The chapter on Military Radios has also been deleted from the text. There are numerous books on this subject.
I have also added a chapter on tuning your PM station and another chapter on weather and the environment. I have also included a new chapter on what most people call, “Apps.” With the explosion of mobile devices in society, hams now also use their smart devices at home and most other places they visit. I’ve added some cool apps for use out in the great outdoors. Also look at the new chapter I added on stretching.< Less

This guide has been produced for aviation enthusiasts, spotters and photographers. It includes the United Kingdom’s military airfield establishments featuring full colour maps of those operated... More > by Royal Air Force, Royal Navy, British Army, United States Air Force and the Ministry of Defence.
This essential guide features 22 maps of the major operational airfields with associated units and airfield radio frequencies plus 28 maps of minor and satellite airfields.
The fourth edition covers upper and lower airspace for military aircraft. These maps illustrate Military Aerodrome Traffic Zones (MATZ), Upper airspace military TACAN route system, low level airspace military routing system, Air to Air Refuelling Areas (AARA), Aerial Tactics Areas (ATA), Military Training Areas (MTA), Areas of Intense Aerial Activity (AIAA), avoidance areas and transit areas.
In addition, a summary of flying units and squadrons is included, bringing together information detailed at each of the airfields featured.< Less

From its beginnings in 1942 as the 215th Signal Depot Company, the 3191st Signal Service Company (Radio Intelligence), and the 82nd Counter Intelligence Corps Detachment, the 313th Military... More > Intelligence Battalion and/or its units fought in every armed conflict from World War II to the global war on terror. This book tells the story of the 313th Communications Reconnaissance Battalion, the 313th Army Security Agency Battalion, the 317th US Army Security Agency Battalion, the 313th Combat Electronic Warfare & Intelligence Battalion, and the 313th Military Intelligence Battalion (Airborne), exploring the integration, consolidation, refinement, and deployment of split-based multi-disciplined intelligence, reconnaissance, battlefield surveillance, and force protection operations. In addition, the book contains lists of the battalion’s heraldic items, lineages and honors, Commanders, and Command Sergeants Majors and features firsthand accounts and photographs of battalion troopers.< Less

A software-defined radio system, or SDR, is a radio communication system where components that have been typically implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators,... More > detectors, etc.) are instead implemented by means of software on a personal computer or embedded computing devices. While the concept of SDR is not new, the rapidly evolving capabilities of digital electronics render practical many processes which used to be only theoretically possible.
Software radios have significant utility for the military and cell phone services, both of which must serve a wide variety of changing radio protocols in real time.< Less

Trade paperback. Written during the waning days of WWII, this mystery about military codes and the ingenious people who send, receive and decode them has Michael and Fleur Revel involved in murder... More > yet again.
Berrow 1946< Less

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